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Towards precision determination of the top-quark massfrom \(\mathbf M_{b\ell}\) distribution in semi-leptonic decays

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Abstract.

We explore a possibility of optimization of the method of determination of the top-quark mass from the \(M_{b\ell}\) distribution in semi-leptonic decays \(t \to b \ell\nu\) at the LHC and a future linear collider (LC). We discover that the systematic and statistical errors of M t determination can be diminished if considering the high moments over the distribution. In the case of LHC this allows one to reduce the errors by more than a factor of two, and in the case of LC to approach the precision expected by studying the threshold scan of the total cross section \(e^ + e^- \to t\bar{t}\).

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Authors and Affiliations

  1. Institute for High-Energy Physics, 142284, Protvino, Russia

    M. L. Nekrasov

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  1. M. L. Nekrasov
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Correspondence to M. L. Nekrasov.

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Received: 28 December 2004, Revised: 26 May 2005, Published online: 13 September 2005

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Nekrasov, M.L. Towards precision determination of the top-quark massfrom \(\mathbf M_{b\ell}\) distribution in semi-leptonic decays. Eur. Phys. J. C 44, 233–241 (2005). https://doi.org/10.1140/epjc/s2005-02362-2

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  • DOI: https://doi.org/10.1140/epjc/s2005-02362-2

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